She starts choking and he kisses her...to help?

I was also confused with this one Like how would that help?? Or maybe he sucked some of the blood to stop her from choking or something?

Im pretty sure he was sucking out the blood so she wouldn’t choke haha; medically when ur laying down and coughing up blood, the buildup can’t be pushed down since ur laying—& im not completely sure abt this part but im pretty sure ur not supposed to move them unless ur supposed to move them to the side, I forgot but either or